The Ochraceous-bellied Bornean Maxomys is a nocturnal spiny rat of Borneo's forests. It searches the forest floor for fruit, seeds, and invertebrates.
The upperparts are reddish brown, while the gray belly can have ochre or reddish tones. Stiff, spine-like hairs cover the body.
It is nocturnal and feeds on fruit, seeds, and invertebrates while foraging on the forest floor. Records span lowland dipterocarp forest, hills, and lower montane forest.
An extinction-risk assessment has not been added yet.